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  4. Escape velocity of a body on the surface of earth is independent of

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Q. Escape velocity of a body on the surface of earth is independent of

Gravitation

Solution:

Escape velocity on the surface of earth is given by
$v=\sqrt{2 g R_{e}}$
i.e. $v \propto \sqrt{R_{e}}$
Hence, escape velocity does not depend on the mass and direction of projection of body, it depends on the radius of earth.
Hence, options (a) and (c) are correct.